ethyl 2-(2-(4-((1R,1'R,3r,3'R,5S,5'S)-[3,9,-bi(9'-azabicyclo[3.3.1]nonan)]-3,-yl)-3-oxo-3,4-dihydroquinoxaline-2-carbonyl)hydrazinecarboxamido)acetate 在
sodium hydroxide 作用下,
以
乙醇 为溶剂,
以98%的产率得到2-(3-(4-((1r,1'R,3r,3'R,5S,5'S)-[3,9'-bi(9'-azabicyclo[3.3.1]nonan)]-3'-yl)-3-oxo-3,4-dihydroquinoxalin-2-yl)-5-oxo-1H-1,2,4-triazol-4(5H)-yl)acetic acid